06-11-2016
Let's get some terms right, as from reading your post I get the feeling not all is crystal clear to you:
df -h does not "load filesystem in OS level", it "... displays the amount of disk space available on the file system ...". A look at man df might help.
vi is one among many text editors. It does not execute scripts nor programs but allows you to create and modify text files. These, if consisting of commands and shell builtins, are known as scripts and, if having the "executable" permission set, can be executed (better: interpreted) by the shell. Just like commands.
Not having the slightest clue about isql I guess it to be an sql interpreter. You can run it interactively to perform ad hoc queries etc., or have it read and interpret sql scripts. One among others is the way you show in post#1 using a "here document".
I'd propose to prepare a shell script very similar to the one in post#1, make it executable, test it interactively, and, when happy with it, run it using su's -c option.
EDIT: Looks like my post crossed your recent update of your post...
Last edited by RudiC; 06-11-2016 at 09:34 AM..
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LEARN ABOUT DEBIAN
yodlpost
yodlpost(1) Your Own Document Language yodlpost(1)
NAME
yodlpost - Yodl post-processor
SYNOPSIS
yodlpost [options] index yodlout [out]
DESCRIPTION
The Yodl post processor is used to solve references into the converted text, and to split (where appropriate) the converted Yodl text in
parts. Some conversions do not require post-processing, such as LaTeX, but most do. Therefore, in most cases a Yodl conversion consists of
two phases:
o First, yodl(1) is called, producing a raw output file and an associated index file;
o Then, yodlpost(1) is called, converting these two files into a final document. Normally, yodl2...(1) scripts are used to perform
complete Yodl conversions.
OPTIONS
-x ext: extension of the out-s if different from out's extension itself. If omitted, and out has no extension, ypp (Yodl Post Processor) is
used.
SEE ALSO
yodlstriproff(1), yodl(1), yodlbuiltins(7), yodlconverters(1), yodlletter(7), yodlmacros(7), yodlmanpage(7), yodlverbinsert(1).
BUGS
-
AUTHOR
Frank B. Brokken (f.b.brokken@rug.nl),
yodl_3.00.0.tar.gz 1996-2010 yodlpost(1)